The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 23, 2010
Filed:
Jun. 22, 2004
Alexander Mueller, Sasbach-Jechtingen, DE;
Christoph Rompf, Greenwood, IN (US);
Alexander Mueller, Sasbach-Jechtingen, DE;
Christoph Rompf, Greenwood, IN (US);
Endress + Hauser GmbH + Co. KG, Maulburg, DE;
Abstract
A field device for monitoring and/or determining a process variable of a medium, wherein the process variable preferably is fill level, viscosity or density of the medium. The field device includes: an oscillatable unit; a driving/receiving unit, which excites the oscillatable unit to oscillate, or which receives the oscillations of the oscillatable unit, as the case may be; and a control/evaluation unit, which controls the oscillations of the oscillatable unit, or which evaluates the oscillations of the oscillatable unit, control/evaluation unit produces an accretion alarm, when the oscillation frequency (f) of the oscillations of the oscillatable unit falls below an adjustable limit value (G; G; G). The limit value (G; G; G) is determinable and/or calculable at least from measured and/or calculated dependencies of the oscillation frequency on process conditions and/or on the process variable to be monitored and/or determined.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile